Thought I'd give this another go. What do you think of the add placement?? http://www.timelineforworldwar2.com
I really like your Ad placement, it is like you designed all pages that way just to make the Adsense link unit fits in them.
When ever I've had actual ads, they aren't relevant..... I've found the links to be the best one for me so far. The majority of all the ads I see displayed on my site are for WWI stuff, not WWII, so nothing ever was clicked.